The effect of material hardness and mean stress on the fatigue limit of steels containing small defects

被引：30

作者：

Kondo, Y ^{[1
]}

Sakae, C

Kubota, M

Kudou, T

机构：

[1] Kyushu Univ, Dept Intelligent Machinery & Syst, Fukuoka 812, Japan

[2] Kyushu Univ, Grad Sch, Fukuoka 812, Japan

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2003年 / 26卷 / 08期

关键词：

crack closure; fatigue limit; hardness; mean stress; small defect; stress intensity factor; threshold stress intensity factor;

D O I：

10.1046/j.1460-2695.2003.00656.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Fatigue tests on material containing small defects were performed under a wide range of mean stress for three grades of steels with different hardness. The DeltaK(th) of small defects had a peculiar dependency on material hardness and mean stress, which was quite different from those of long cracks or plain specimens. The crack closure of short cracks was measured. It was shown that the formation of the crack closure was affected by the material hardness and mean stress. This behaviour of crack closure resulted in characteristic fatigue limit properties of materials containing small defects.

引用

页码：675 / 682

页数：8

共 9 条

[1] Prediction of fatigue limits of engineering components containing small defects [J].

Akiniwa, Y ;

Tanaka, K .

FATIGUE CRACK GROWTH THRESHOLDS, ENDURANCE LIMITS, AND DESIGN, 2000, 1372 :304-318

[2]

[Anonymous], 1984, FATIGUE CRACK GROWTH

[3]

Elber W., 1971, AMAGE TOLERANCE AIRC, P230, DOI DOI 10.1520/STP486-EB

[4]

Kikukawa M., 1981, Journal of the Society of Materials Science, Japan, V30, P276, DOI 10.2472/jsms.30.276

[5]

KIKUKAWA M, 1976, P ICM, V2, P254

[6]

MCEVILY AJ, 2001, MAT SCI RES INT SPEC, V1, P113

[7]

MURAKAMI Y, 1986, BEHAV SHORT FATIGUE, P275

[8]

Nishijima S., 1980, Journal of the Society of Materials Science, Japan, V29, P24, DOI 10.2472/jsms.29.24

[9]

USAMI S, 1982, FATIGUE THRESHOLDS, P205

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